Calculate average number of customer waiting

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Reference no: EM1399977

Andrew the barber owns a four chai shop. andrew estimated that each barber would take an average of 30 min to give a haircut in an exponentially distribution fashion. customers arrive at the rate of 6 per hour in a poisson distribution find the following.
1) the average number of customer waiting.
2)the average time in minutes a costumer is in the shop.
please show work

Reference no: EM1399977

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